Judas Priest vs heyday

Judas Priest

intj
  • A euphemistic or innocuous term in place of the idiom Jesus Christ! commonly used in anger or surprise. 

heyday

noun
  • A period of success, popularity, or power; prime. 

intj
  • A lively greeting. 

How often have the words Judas Priest and heyday occurred in a corpus of books? (source: Google Ngram Viewer )